@misc{indiciae2b36518075d7,
  title = {Mechanical digital punch tape device},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1958},
  doi = {10.3133/ofr5834},
  url = {https://pubs.usgs.gov/publication/ofr5834},
  note = {Source identifier: ofr5834}
}